Fisheries and aquaculture are becoming a focus of societal concern driven by globalization and increasing environmental degradation, mainly caused by climate change and marine litter. In response to this problem, the European Atlantic Area NEPTUNUS project aims to support and inform about the sustainability of the seafood sector, boosting the transition towards a circular economy through defining eco-innovation approaches and a steady methodology for eco-labelling products. This timely trans-regional European project proposes key corrective actions for positively influencing resource efficiency by addressing a life cycle thinking and involving all stakeholders in decision-making processes, harnessing the water-energy-seafood nexus. This paper presents inter-related objectives, methodologies and cues to action that will potentially meet these challenges that are aligned with many of the United Nations Sustainable Development Goals and European policy frameworks (e.g., Farm to Fork, European Green Deal).

The tourism industry, affected by COVID-19, must reduce greenhouse gas emissions. This study evaluated the environmental impact of three hotels in coastal and mountainous regions of Spain and Portugal using Life Cycle Assessment (LCA). Data was gathered via surveys in the Greentour tool. Results indicate that the 2-star hotel (focused on cultural-urban tourism) has the highest impacts in most categories, except for CC, FRD, and POF indicators. The 3-star hotel (beach tourism) contributes the most to CC and FRD indicators, while the hostel (nature-religious tourism) has the highest value in the POF indicator. LCA findings reveal that diesel consumption in the hostel and electricity usage in both the 2-star and 3-star hotels are major contributors to environmental impacts across various categories. Overall, evidence suggests that fossil fuel and electricity usage significantly affect tourism activities environmentally. Interestingly, this study highlights that a 2-star hotel can have a higher carbon footprint (CC indicator) compared to a 3-star hotel, challenging the notion that higher star ratings imply lower environmental impact.

Travel and tourism are essential to global economies, generating social, economic, and environmental impacts. However, there is a lack of standardized methodologies to assess the environmental footprint of tourist destinations beyond carbon footprint analysis. This study introduces the Greentour tool, the first of its kind to evaluate the environmental impact of accommodation, restaurants, and tourism activities using nine environmental indicators from a life cycle assessment (LCA) perspective. The tool applies a hybrid bottom-up and top-down approach, integrating data from tourist establishments and destination managers. The tool was tested in four tourist destinations in Spain and Portugal (Rías Baixas, Camino Lebaniego, Lloret de Mar, and Guimarães), revealing that transportation is the primary contributor to environmental impacts, ranging from 60% to 96% of total emissions, particularly in air-travel-dependent destinations. Food and beverage services are the second-largest contributor, accounting for up to 26% of emissions, while accommodation ranks third (1–14%). This study highlights the significant role of electricity consumption and food choices (e.g., red meat and dairy) in greenhouse gas (GHG) emissions, emphasizing the need for sustainable alternatives. Despite challenges in data collection, particularly for food and transport statistics, the Greentour tool has demonstrated robustness and adaptability across diverse destinations, making it applicable worldwide. This tool provides key insights for policymakers, tourism stakeholders, and businesses, supporting the integration of sustainability strategies into public policies and industry best practices. Future research should focus on expanding its use to additional destinations to foster science-based decision-making and promote more sustainable tourism practices globally.

This study evaluates the environmental performance of stabilised sewage sludge used as a circular fertiliser across three European regions: Central, Mediterranean, and Northern Europe, comparing its performance against non-renewable fertilisers. The research applies a life cycle assessment approach, considering a mix of the most used stabilisation technologies in each region, such as anaerobic digestion, chemical treatment, thermal drying, composting, and aerobic digestion. Environmental impacts were assessed based on key categories, including climate change, acidification, eutrophication, and resource use. The environmental performance of circular fertiliser production outperformed non-renewable fertilisers in all assessed categories, showcasing its potential as a sustainable alternative. Findings reveal that the choice of stabilisation process is key to the overall environmental performance of the region. High energy-driven technologies such as thermal drying present the bigger impacts. Regional disparities highlight the need for context-specific technology selection to optimise environmental outcomes. The study underscores the importance of integrating energy recovery and nutrient recycling in sludge management practices. These findings advocate for the promotion of circular fertilisers within a sustainable agricultural framework, emphasising technology adaptation based on local conditions to enhance ecological and economic benefits.